Paper feed for typewriters



' Dec 3, 1929. o, sc c TER 1,738,024

PAPER FEED FOR TYPEWRITERS Filed. May 24, 1927 s Sheets-Sheet l R E T Hm L H C S 0 PAPER FEED FOR TYPEWRITERS Filed. May 2 1.92.7 3Sheets-Sheet 2 3 Sheets-Sheet 5 o. SCHLICHTER PAPER FEED FOR TYPEWRITERSFiled May 2 1927 Dec" 3, 1929.

al kozum t lid Patented Dec. 3, 1929 UNITED STATES PATENT OFFICE OSCARSCHLIGHTER, OF HAMILTON, OHIO, ASSIGNOR TO KRAUTH 8c BEN'NINGHOFEN, 1 iOF HAMILTON, OHIO, A FIRE PAPER FEED FOE TYPEWBITERS Application filedMay 24, 1927. Serial No. 193,919.

This invention relates to a device as an attachment for typewriting orbilling machines for supporting a plurality of webs in a superposedarrangement upon a writing table'or laten and for aligning andmaintainin t e registry of the printed forms or form ata on the severalwebs within the area of the writing table. The webs are fed from asingle supply roll over floating gravity rollers to the platen, therollers applying the necessary tension upon each individual Web.

An object of the invention is to provide one or a plurality" of floatingor loosely ournalled rollers for applying a gravity tension individuallyupon one or a plurality of webs of the paper fed from a supply roll to aprinting platen for obtaining a uniform tension of the web lengths overa writing table or platen bringing and maintaining the printed forms ofthe several webs in alignment and registration, and permitting the websto be manually withdrawn an appropriate degree beyond the writing tableor platen when it is necessary to malre corrections, and thereafterautomatically retracted to their proper position upon the writing table,

Another object of my invention is to provide tension or braking meansfor retarding or'witholding the web supply roll so as to prevent thesame from overrunning as the web is withdrawn therefrom, and also towith hold the same against the pressure of tension rollers engaged uponthe web between the roll and writing table.

Further advantages and features relate to the mechanism for engaging thewebs at the writing table through apertures in the paper, and fordepressing the writing table to release the web or webs thereon formanual withdrawal, all of which is more fully set forth in thedescription of the accompanying drawings, in which:

figure 1 is a plan view of the web tension 1. applying and aligningdevice Figure 2 is a sectional view taken on line :2--2, Figure l,detailing the mechanism for applying uniform tension to the webs ofpaper as they are fed from the roll and showing the means formaintaining the webs taut upon the printing platen and for releasing thesame for an appropriate feed thereof.

Figure 3 is a fragmentary end view showinga portion of the rack hung atthe end of the device for slidably mounting the gravity rollers actingupon the respective webs of paper.

Figure 4: is a fragmentary view of a portion-of the side of the machineshowing the support for the paper roll and the frictiondevice thereonfor controlling the unwinding of the roll.

Figure 5 is a sectional view taken on line 5-5, Figure t, furtherdetailing the mechanism shown in Figure 1-.

Figure 6 is a fragmentary plan view taken at the printing end of thedevice illustrating in detail the mechanism for releasing the webs andshowing the mechanism in release position for advancing the webs.

Figure "l is a sectional view talren on line il -7, Figure 6, furtherdetailing the mecha vnism shown in Figure ti.

Figure 8 is a detail plan view of the pin carrying plate whichcooperates with apertures in the paper websfor controlling the feedshowing the plate removed from. the mechanism.

'lhe mechanism primarily provides a web support and platen as anattachment for Elliott Fisher type-writing or billing machines tillrolls as floating gravity rolls to and over a i writing table so thateach web of the mani roll, as the webs are engaged or sustained upon theplaten are held under a uniform or proper tension for aligning the formsof the several webs upon the writing table.

it tension means also serves to prevent till lllltl overrun of the rollas the webs-are drawn forward over the table and hooked over or engagedwith pins at the forward or delivery end of the platen. The webs can beconveniently drawn forward out of contact with the manifolding papertherebetween for making corrections after which the forms or webs slideback into the former position for engagement with the pins, so that thetyping may be completed, the webs being provided with sets of aperturesin definite relation to the preprinted forms and bear relative spacingtothe form lengths and, therefore, provide indexes or points forinitially bringing the forms into registry and. alignment when disposedupon the writing table and'also for engaging the webs upon the pins tohold the samev against displacement.

The general structure of the machine is table-like, comprising, sideframes 11 held together by means of cross rods 2-2 and the cross bars3.3 at each end of the printing platen. A printing platen or writingtable 4 is disposed between the side frames and at the discharge end ofthe machine, and movably mounted. This table-like structure formed bythe side frames 11 and cross rods 2--2 is supported upon a pair of pedestal-like legs 55 and the legs are suitably reinforced by cross rods.

The frame work for supporting the roll of paper and the gravity devicefor applying tension to the webs of paper is mounted within the mainframe and consists of side frames 6-6 bound together by tie rods 7 7 theside frames being notched on their lower sides so as to be en aged uponthe tie rods of the main frame, and

A roll of multi-web paper 8 is hung beneath the frame, of the machine ondepending' brackets 9. The brackets 9 are dovetailed into the sideframes 6-6 and bound together by a tie rod 10. Their lower ends areslotted to provide hooks engaging the respective ends of a shaft orspindle 11 supporting the roll 8 and rotatable therewith. i A U-shapedrack 12 is pivoted to the side frames -66 and is disposed at the feedside of the roll and toward the end of the device.

. The rack is of such length as to clear the floor beneath the machineand is rigidly maintained in position, slanting away from the roll bymeans of a pair of arms 12.

The arms 12, one at eaeh side of the rack, v are pivoted thereto as at12 and extendto the brackets 9. Twopairs of slots 12 and 12 are providedin the arms and adapted to engage over pins on the bracket 9. One pairof these slots, namely, 12 maintains the rack in service position andthe other pair 12 are for sustaining it out from below the machineduring-loading of the roll.

The rack is fabricated of stampings to pro- 'v-ide opposingly relatedslots 13 inits side 7. arms in which a plurality of horizontallyrecessed within the main frame.

disposed rollers 1a are slidably mounted. The rollers have reduced endportions engaging the slots, the shoulders formed thereby preventinglongitudinal displacement of the rollers. The number of rollers 14.-corresponds to the number of webs of paper in the roll. The side arms ofthe rack are formed of pairs of flat pieces spaced apart by the lowercross piece and spacer plates at the top to provide the slots 13 andformed at the top to encircle the pivot studs.

Immediately above the rack a series of herizontally disposed guiderollers 15 are mounted in the side frames 6-6, and arranged so that asthe Webs of paper are brought up from below the machine and each oneengaged over a respective gravity roller 14 thence up wardly over arespective guide roller 15 to and over the printing platen with the endsof the webs engaged upon pins to hold the same against retraction.

The gravity rollers 14L float upon the webs to apply the necessarytension for unwinding from the roll and hold the same taut upon theplaten. The inclination of the rack 12 in relation to the series ofrollers 15 keeps the webs of paper spaced apart from the supply roll tothe rollers 15 so that a uniform or determined tension is applied toeach individual web contained in the mani roll. This action of thegravity rollers is against the mechanism maintaining the webs upon theplaten at the discharge end of the machine and against the action of afriction device 16 con trolling the unwinding of the roll at the supplyor roll end.

The friction device 16 is mounted and acts upon the outer end of therotating axle shaft 11 of the roll, and comprises a clip 17 engagedabout a shoe or split bushing 18 of friction 'material in directengagement with the axle and a set screw 19 at one end of the clipengaging the edge of the depending bracket to prevent rotation of theclip. (See Figures 4 and 5). The adjustment of the friction device isthrough a clamp screw 20 for drawing the clip tightly about the shoe.The roll of paper is mounted upon cup-shaped disks 21 adjustably mountedon the shaft 11 and set in place by set screws engaging through the hubs22.

It canreadily be seen that as the device is put into operation and thegravity rollers hung upon their respective webs of paper, the frictiondevice can then be set or adjusted so as to evenly balance the gravityaction of the rollers and ,to thereby allow them to space the paper websapart-and tautly maintain each web for a uniform feed of the webs, asthey are drawn forward and to maintain the proper tension when the websare sustained upon the platen.

The Webs of paper are guided at the point where they pass the rollers 15by means of a pair of guides 23 at the opposite sides of the t raaeaaing plate 26 formed of a piece of stamped metal is secured to the sideframes fl by means of screws engaging through side wings of the plateand is disposed between the side frames at the discharge end of theplaten 4.

The pins 26 of the plate extend above the top face of the platen and areadapted to cooperate with a pair of apertures for intercepting the websand withhold the same against withdrawal, registering and aligning thepreprinted forms of the webs disposed upon the platen, and also toanchor the forward ends of the webs under the tension of the rollers 14.The-pins are rounded on the sides toward the platen so as to allow thepaper webs to slide easily over the same dur ing feed.

, The side of the'plate 26 toward the tearing point for the web isnotched centrally thereof as at 26 to provide a finger clearance tograsp the ends of the webs. The webs are further guided onto the platenby means of guides 27 slidably mounted on the cross bar 3 at the forwardend of the: platen and set in adjusted position by means of set screws28. These guides 27 have extensions 27 over hanging the margin of thepaper webs and the platen so as to engagethe webs betweenthe extensionsand the platen.

The printing platen 4 is movably supported in the followingmanner:

The cross bar 3 at the discharge end of the machine has lugs 29extending forward under the platen. These lugs are traversed by screws30 threaded into the platen and springs 31 are interposed between thelugs 29 and the downwardly disposed heads of the screws 30. Thisprovides the flexible connection at the discharge end of the platen. Thelugs further provide a support for the pin plate. The forward endof theplaten is supported or held against the extensions of the guides 27,securing the margin of thepaper, by means of spring urged levers 32plnned on a rack shaft 33 extending between the frames 1-1. The end ofthe lever 32 isprovided with a roller to provide easy movement againstthe platen. Hook levers 35 are also pinned to the "shaft 33 and havetheir hooks extending downwardly and engaged by the ends of the coilsprings 36. The opposite ends of the respective coil springs 36 areattached to hook levers 37, theseelevers in turn being pinned to asecond rock shaft 38 disposed toward the discharge end of the machineand journalled in the side frames 1-1. The rock shaft 38 pivotallysupports'the lifting knife 39.. The

The action of the coil springs which are un M der tension is to forcethe roller carrying lever against the platen and to hold the knife blade41 down against the cross bar 3. The knife is provided with a head 42 atthe outer end thereof and on its lower side, this bead being adjacent abead 43 on the rib 3 and pinching the webs under the action' of thesprings so that the paper may be torn at this point.

Tn order to swing the :platen downwardly at its rear end and to raisethe knife so as to release the paper at its respective held points aseries of levers are provided as follows:

' shaped element 47. This Ill-shaped element is pivoted on the rod 46intermediate its side arms and the outer ends thereof are engaged underthe rock shaft 38. The links are attached to the levers 44 intermediatetheir pivoted ends and the rod 46.

The yoke end has attached thereto a control wire 48. The control wireextends downwardly toward the floor and is attached to one of a pair ofswinging levers 49 pivoted to a cross bar of the legs. The lever towhich the wire is attached at its lower end is provided with-a treadleportion 50 for foot operation.

When it is desirable to release the webs from confinement under theknife and against the extensions of the guides, so that they may be fedforward to position a successive set'of forms upon the platen, theoperator moves the control wire for operating the til-shaped lever,conveying a swinging movementto the levers 44, thereby pulling theswinging end of the platen 4 downward 1 up against theknife and it isthen clear of the pins and can be drawn out of the machine. After thewebs are free of the aligning pins the operator may release the treadleand withdraw the webs over the pins until a successive set of aperturesin the webs are reached and engaged with the pins. The

paper then may be torn at the point of knife engagement.

When the aligning pins are in engagement withthe pair of apertures thewebs are posi- 5 tively held in position across the face of the.printing platen.

Having described my invention, I claim: 1. A device of the characterdisclosed, combining a platen for supporting a plurality of webs ofpaper in superposed relation for manifolding, means for securing thewebs upon the platen against displacement, the webs being continuousfrom the platen to a single multi web supply roll, a pivoted rackdepending from the platen and adjustable to an inclined position and aplurality of rollers having journal ends engaged in elongated slots insaid rack, the rollers in superposed arrangement in said rack slots, onefor each web, each bearing upon a web in floating suspension forapplying a gravity tension thereupon, the inclination of the rackrelatively ofisetting the rollers for separating the webs between theplaten and supply roll. 2. A device of the character disclosed,combining a frame, a platen mounted in said frame for supporting aplurality of webs of paper in superposed relation for manifolding, meansfor securing the webs upon the platen against displacement, meansdepending from' the frame for journalling. a roll of multi web paper, ajournal carrying a plurality of idler rollers in superposed and offsetrelation, and an idler roller for each web engaging the web and applyingtension under gravity to the web between the supply roll and platen. 13. A device of the character disclosed, combining a platen forsupporting a plurality of webs of paper in superposed relation formanifolding, a journal for supporting a multi web wound roll, a spindlefor said roll carried by said journal, a split bushing en-, gaged aboutsaid spindle, and means for com- 4 pressively engaging said bushing forapplymy name.

ing a friction pressure to said bushing and spfildle, retarding the webunwound from the ro I In witness whereof, I hereunto subscribe osoARsonLIoHrER.

